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Carl Jacobi

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Charles Hermite’s admiration for simple beauty in Mathematics

Charles Hermite’s admiration for simple beauty in Mathematics

Tabea Tietz
On December 24, 1821, French mathematician Charles Hermite was born. He was the first to prove that e, the base of natural logarithms, is a transcendental number. Furthermore, he is famous for his work in the theory of functions including the application of elliptic functions and his provision of the first solution to the general equation of the fifth degree, the quintic equation. “There exists, if I am not mistaken, an entire…
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mathematics

Carl Jacobi and the Elliptic Functions

Tabea Tietz
On December 10, 1804, German mathematician Carl Gustav Jacob Jacobi was born. He made fundamental contributions to elliptic functions, dynamics, differential equations, and number theory. “Any progress in the theory of partial differential equations must also bring about a progress in Mechanics.” – Carl Jacobi, Vorlesungen über Dynamik [Lectures on Dynamics] (1842/3) Carl Jacobi – A Child Prodigy Carl Jacobi was the son of a banker and grew up in a rather…
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astronomy
Friedrich Wilhelm Bessel and the Distances of Stars

Friedrich Wilhelm Bessel and the Distances of Stars

Harald Sack
On July 22, 1784, German mathematician and astronomer Friedrich Wilhelm Bessel was born. He is probably best known for his works in mathematics, where he discovered the eponymous Bessel-functions, which are critical for the solution of certain differential equations. Friedrich Wilhelm Bessel – Youth and Education Friedrich Wilhelm Bessel was born in Minden, Westfalia, as the second child of a large family with six daughters and three sons. His mother Friederike Ernestine…
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mathematics
Lejeune Dirichlet and the Mathematical Function

Lejeune Dirichlet and the Mathematical Function

Harald Sack
On February 13, 1805, German mathematician Johann Peter Gustav Lejeune Dirichlet was born. Dirichlet is best known for his papers on conditions for the convergence of trigonometric series and the use of the series to represent arbitrary functions. He also proposed in 1837 the modern definition of a mathematical function. “In mathematics as in other fields, to find one self lost in wonder at some manifestation is frequently the half of a new discovery.”…
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history
Only the Good Die Young – the Very Short Life of Évariste Galois

Only the Good Die Young – the Very Short Life of Évariste Galois

Harald Sack
On June 1st, 1832, French mathematician Évariste Galois was killed in a duel. He was only 20 years of age. He left an elaborate manuscript three years earlier, in which he established that an algebraic equation is solvable by radicals, if and only if the group of permutations of its roots has a certain structure, thereby solving a problem standing for 350 years. But why did he have to die so young? Just because…
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mathematics
Karl Weierstrass – the Father of Modern Analysis

Karl Weierstrass – the Father of Modern Analysis

Harald Sack
On February 19, 1897, German mathematician Karl Theodor Wilhelm Weierstrass passed away. Weierstrass often is cited as the “father of modern analysis“. He formalized the definition of the continuity of a function, proved the intermediate value theorem and the Bolzano–Weierstrass theorem, and used the latter to study the properties of continuous functions on closed bounded intervals. “… it is true that a mathematician who is not somewhat of a poet, will never be a…
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